/Engine/Plugins/Runtime/RigVM/Source/RigVM/Public/RigVMCore/RigVMTemplate.h
Returns true if the template was able to resolve to single permutation
bool FullyResolve ( [FTypeMap](API\Plugins\RigVM\RigVMCore\FRigVMTemplate\FTypeMap) & InOutTypes, int32 & OutPermutationIndex ) const